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How does “do something OR DIE()” work in PHP?
...ur query is unsuccessful, it will evaluate the die() statement and end the script.
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How do I update a Python package?
...de all the outdated packages (that were installed using pip), just run the script bellow,
pip install $(pip list --outdated | awk '{ print $1 }') --upgrade
Here, pip list --outdated will list all the out dated packages and then we pipe it to awk, so it will print only the names.
Then, the $(...) ...
Is there a code obfuscator for PHP? [closed]
...t. If you just want something to stop non-programmers then here's a little script I wrote you can use:
<?php
$infile=$_SERVER['argv'][1];
$outfile=$_SERVER['argv'][2];
if (!$infile || !$outfile) {
die("Usage: php {$_SERVER['argv'][0]} <input file> <output file>\n");
}
echo "Proce...
How to check if a file is empty in Bash?
....txt
else
rm -f full.txt
touch empty.txt
fi
I like shell scripting a lot, but one disadvantage of it is that the shell cannot help you when you misspell, whereas a compiler like your C++ compiler can help you.
Notice incidentally that I have swapped the roles of empty.txt and full...
How to create a database from shell command?
...
@Clifford: you could using simple (ba)sh script using normal shell arguments. (stackoverflow.com/questions/23563043/shell-script-arguments) Probably merits its own question.
– Kris
Mar 11 '16 at 20:42
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How to store standard error in a variable
Let's say I have a script like the following:
18 Answers
18
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What's the best way of scraping data from a website? [closed]
...ging and error detection in your crawling code that logs the exact issues, alerts you to the problem and stops crawling. Now you can update your cache, run your unit tests and see what you need to change.
Legal Issues
The law here can be slightly dangerous if you do stupid things. If the law gets ...
How to set up Spark on Windows?
...ou this version: Hadoop 2 (HDP2, CDH5)
Since version 1.0.0 there are .cmd scripts to run spark in windows.
Unpack it using 7zip or similar.
To start you can execute /bin/spark-shell.cmd --master local[2]
To configure your instance, you can follow this link: http://spark.apache.org/docs/latest/
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Is there any way to change input type=“date” format?
...39 is a correct one, as it does not create a coupling between HTML and JavaScript. As for your second point, I'd feel that from a usability perspective, it would make sense for the user to see the calendar according to his regional preferences.
– David Walschots
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How do I dynamically change the content in an iframe using jquery?
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<html>
<head>
<script type="text/javascript" src="jquery.js"></script>
<script>
$(document).ready(function(){
var locations = ["http://webPage1.com", "http://webPage2.com"];
var len = locations.lengt...